Surface condenser



Feb. 8,1927.- l

. V J. F. GRACE www@ SURFACE CONDNSER Filed March 24, 1923 I NVENTOR :rom: r: Guen, or

Patented Feb. a, 1927.

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f Application mea mmh 24,1923. sex-a1 no. 627,266.

f c, through.

The especial objectof this inventionis to provide a surface condenser which is especially adaptedv for'useof a long condenser shell and large quantities of cooling water without building up ,undesirablefriction.L

' A further object of the invention is to obtain an equalized steamdistribution through the condenser whereby approximately. equal quantities ofr steam will'. be

Y. condensed in eachendof the. condenserand f the air and uncondensed vapors. are evenlylcooled. V c c. The invention. is illustrated in its preferred form in the 'accompanying drawing,V forming a part of this specification, and this construction Will now be described in'detall.y

and the features formingy the ihventio'n then lspecilically pointed out inthe claims.

n the drawing- Fig. 2 is a side elevation of .another form ofthe invention;- and, f

F1g.. 31s a sectionaljplan thereof., the secr tion beingfon line 3-3 of fig. 2. .30 Referring to the drawing,y and Vfor the` moment toiFig. 1 thereof: The surface vcondenser comprises a shell .10 enclosing a steam space llvtraverfsed fromlend .tovend by cooling tubes'12,'the ends of whichare secured in the usual' vmanner in tube plates 13 enclosed by water boxes or heads 14: and

15. As is usual the shell. includes an inlet 16 for the steam and a hot well 17 for the water of condensation Whichis withdrawn therefrom through pipe. 1R. y

The cooling orlci-rculation Wateris sup-4 plied to the 'tubes 12 fpr condensation of' the steam in .space-l1 vby a `pump 19 through lnection 21 discharges .into Water box o1" connection 20 which is preferably divided 'into two branches 21 and 22. Branch conhead' 15'-which is divided horizontally byfa vdiaphragm 1 to form', preferably, 'a

inlet chamber a to which branch conne tion 2l is connected and a discharge chamber b provided. Ywith a discharge connection 23.

c The other branch connection 22 connects preferably with the upper end ofy the watervbox or head '14 which is divided jby diaphragm 2 into a' return flow chamber@ and a praterater.

",f. anziani, ASSIdrionlroWoitrnnieroi rotan a y construction is vas connection 21 to water inlet chamber a in water' box 15, from whichit passesthrough thetubes 12 located below the diaphragml l to the'return flow chamber c of Water box 14: Thisilow is now directed by diaphragm 2 mto those tubes vlocated in planes between thetwo diaphragm's for return flow to disL 'fi chal-gef chamber fronrwhich it isf-with"- drawn through discharge connection '23. The other portion of the circulation 'Water passes throu h kbranch connection 22y to yvater inlet c amber d' in water ybox 14 and 1s dlrecte'd by diaphragm 2 through the upper tubes of the condenser tov discharge" withdrawal' v through discharge connection 234. I Fromthe above it'will be seen that the. Fig. l is a vertical section lofta surface condenser according tomy inventlon;

chamber b in Waterbox 115 for flow ofthe circulation Water'thrcugh they' condenser is divided into a single-pass flow,

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reduction of friction and to prevent the disy 'ff-f charge ofA any unheated watein l L c Furthermore, an approximately equal con densation of steam is secured in each end of vvthe condenser. by` directing the flow throughfthe single-pass and the lfirst stage'A of thetWo-pass ortions in opposite directions; As an aid) in 4accomplishing"this` re- 'sultthe steam space 11 may be dividedby a Vertical partition 3 if desired.

` Figures 2 and 3 show afurther development of thisiideaas applied inv a single-pass condenser. In this construction the. waiter boxes 14 and 15are divided by vertical diaphragms, vrespectively fi 'and 5, into Water `.inlet chambers ef andf and `discharge, chamy bers g and h, having respectively discharge connections 6 and?. The chambers aand ft are oppositely located-'andychnnectedby a portion of the tubes l2'and the chambers f and g 'are lsimilarly'*located 'and connected .by the rest of the tubes. The circulation Water supply pipe is formed with two branch connections 8 and 9 which connect respectively with the chamber-se and 7. With this construction the diaphragm 3 in the steam space 1 1'is also use In 'operation the circulation water passes throiigh branch connections 8 and 9 to vthe water supply chambers e and f, at opposite ends of vthe condenser, and then 'in two single pass'opposite flows through the tubes 12 to the discharge chambers g and k from` which the 'water is withdrawn through disA l charge connections 6 and 7.

,defined b1 the claims.

VVhat claim is iv b y y l 1.v A surface condenser comprising a steam space traversed by cooling tubes, water boxes at the tubeends, and means' dividing the .cooling tubes intoy an upper single-pass group and a lower two-pass group, the cooling water passing through the single-pass group andthe first stage of the two-pass group in opposite direct-ions. f 'y 2; A surface condenser comprising asteam.

space traversed by coolingtubes, water boxes at the tube ends, and means dividing ,the

cooling tubes into an upper single-pass group 4pumpgand ythe lowery chamber of one water and` a lower two-pass group, .the first stage of the two-pass group being located belowthe 'second stage thereof and the cooling surface' condenser comprising a ,steaml space ytraversecl-l'by. cooling tubes, water boxes atgthe tube ends, partitions di viding each ofthe water boxes intotwo cham bers, afcircul'ating water pump,` and` connectionsl between the 'pump and the lower chamber of one water box and the upper chamber of the other .water-box. a

equally, f 5. A surface condenser comprising a steam.

space traversed by cooling tubes, water boxes vat the tube'fends, partition Ymeans :in the l lily hand. l

, 4, .A surface condenser comprisinb a steam groups, va circulating waterA inlet for each group located at opposite ends of` the condenser',`v means for Isupplying .circulating water at substantially the same temperature and pressure to'each of said inlets, and 'a vertical partition dividing the steamlspace waterl boxes dividing' the tubes into two groups, a circulating water inlet lfor each group located at opposite ends of the condenser, and' means lfor 'supplying circulatingfwater fat substantially the ksame `Vtemperature and 'pressure to each of said inlets.

6. A surface Condenser comprising asteam y space traversed by cooling tubes, water boxes spaeetraversed by cooling tubeswater' boxes kat thev "tube ends, partition means.y in thev 'water boxes dividing theftubes into two at .the -tube ends, partitions dividing each of 'the water boxes into two chambers, a eircuf 'f lating water pump, connectionsv between theI box and, the upper chamber* of. thegothee water.- box, and a verticalpartition divding the steam space equally. i V i.

T7. A surface condenser, comprising a .casing, water tubes extending into-the oasi-ngf4 trais'verseto the line of steam iviow'.there- Q through, and vmeans for lsupplying water to substantially equal numbers'of saidtubes -at substantially thesme temperaturegand in opposite'directions of low. .i

. vIn testimony whereof, Izha've hereuntoset JOHN r. Guam-l., 

